C++ impact and status on Exercism

C++

142,432 students

About C++

Learn

Practice

128 contributors

1957 mentors

C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

142,432

Submissions

1,879,861

Mentoring Discussions

13,246

The C++ track needs attention ⚠️

Building

C++ syllabus

Learn More

Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

19 concepts being taught

Includes

8,151 learnt

Strings

8,151 learnt

Basics

14,910 learnt

Numbers

6,047 learnt

Namespaces

9,674 learnt

Booleans

10,006 learnt

Comparisons

5,139 learnt

If Statements

5,139 learnt

Arrays and Vectors

3,058 learnt

Loops

4,214 learnt

Classes

3,584 learnt

References

2,363 learnt

Enumerations

2,651 learnt

Switch Statements

2,651 learnt

Headers

1,727 learnt

Functions

1,212 learnt

Auto

277 learnt

Smart Pointers

277 learnt

Pointers

534 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

11,769

85,885 (avg. 7.3)

8,151 (69.3%)

221 (1.9%)

Lasagna

20,718

86,400 (avg. 4.2)

14,910 (72.0%)

252 (1.2%)

Freelancer Rates

6,886

59,308 (avg. 8.6)

6,047 (87.8%)

75 (1.1%)

Last Will

11,708

65,499 (avg. 5.6)

9,674 (82.6%)

128 (1.1%)

Pacman Rules

11,003

58,833 (avg. 5.3)

10,006 (90.9%)

112 (1.0%)

Vehicle Purchase

5,436

34,804 (avg. 6.4)

5,139 (94.5%)

45 (0.8%)

Making the Grade

3,705

61,164 (avg. 16.5)

3,058 (82.5%)

99 (2.7%)

Interest is interesting

4,554

33,102 (avg. 7.3)

4,214 (92.5%)

45 (1.0%)

Ellen's Alien Game

3,916

29,098 (avg. 7.4)

3,584 (91.5%)

49 (1.3%)

Election Day

2,620

28,822 (avg. 11.0)

2,363 (90.2%)

42 (1.6%)

Troll the Trolls

2,939

27,945 (avg. 9.5)

2,651 (90.2%)

66 (2.2%)

Doctor Data

2,201

30,967 (avg. 14.1)

1,727 (78.5%)

42 (1.9%)

lasagna-master

1,442

19,508 (avg. 13.5)

1,212 (84.0%)

22 (1.5%)

Power of Troy

365

4,594 (avg. 12.6)

277 (75.9%)

4 (1.1%)

Speedywagon Foundation

659

5,953 (avg. 9.0)

534 (81.0%)

7 (1.1%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: 0b9f7eed972172dd081a0c9f867cf1e4eab18273 (Updates should be instant)

Next goal: Implement 138 practice exercises. Find out more.

82 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

106,871

284,941 (avg. 2.7)

54,962 (51.4%)

12 (0.0%)

Leap

24,334

102,015 (avg. 4.2)

12,840 (52.8%)

2,536 (10.4%)

Reverse String

13,922

90,709 (avg. 6.5)

8,988 (64.6%)

1,515 (10.9%)

Space Age

8,932

69,265 (avg. 7.8)

4,375 (49.0%)

1,149 (12.9%)

Triangle

6,051

43,341 (avg. 7.2)

3,624 (59.9%)

777 (12.8%)

Grains

4,178

28,772 (avg. 6.9)

3,339 (79.9%)

606 (14.5%)

Raindrops

7,601

53,277 (avg. 7.0)

6,166 (81.1%)

658 (8.7%)

Pangram

3,386

24,447 (avg. 7.2)

2,698 (79.7%)

495 (14.6%)

Two-Fer

3,156

12,727 (avg. 4.0)

2,615 (82.9%)

88 (2.8%)

Grade School

3,434

31,997 (avg. 9.3)

2,227 (64.9%)

235 (6.8%)

Hamming

4,931

14,619 (avg. 3.0)

3,999 (81.1%)

367 (7.4%)

Nucleotide Count

3,377

17,712 (avg. 5.2)

2,505 (74.2%)

282 (8.4%)

RNA Transcription

2,656

13,640 (avg. 5.1)

2,180 (82.1%)

174 (6.6%)

Collatz Conjecture

2,217

10,235 (avg. 4.6)

1,870 (84.3%)

56 (2.5%)

Difference of Squares

3,851

12,802 (avg. 3.3)

3,367 (87.4%)

183 (4.8%)

Nth Prime

2,507

17,067 (avg. 6.8)

1,674 (66.8%)

141 (5.6%)

Queen Attack

2,150

17,225 (avg. 8.0)

1,412 (65.7%)

116 (5.4%)

Sieve

2,092

12,263 (avg. 5.9)

1,682 (80.4%)

133 (6.4%)

Say

1,754

15,538 (avg. 8.9)

968 (55.2%)

124 (7.1%)

Gigasecond

3,004

6,353 (avg. 2.1)

2,053 (68.3%)

257 (8.6%)

Secret Handshake

1,449

7,614 (avg. 5.3)

1,182 (81.6%)

52 (3.6%)

Allergies

2,513

18,525 (avg. 7.4)

1,621 (64.5%)

95 (3.8%)

Protein Translation

1,603

10,692 (avg. 6.7)

1,330 (83.0%)

58 (3.6%)

Sum of Multiples

1,787

6,843 (avg. 3.8)

1,372 (76.8%)

73 (4.1%)

Prime Factors

1,601

6,585 (avg. 4.1)

1,297 (81.0%)

51 (3.2%)

Robot Name

1,705

11,893 (avg. 7.0)

1,178 (69.1%)

118 (6.9%)

Clock

1,273

7,771 (avg. 6.1)

730 (57.3%)

54 (4.2%)

Meetup

991

3,744 (avg. 3.8)

548 (55.3%)

25 (2.5%)

Beer Song

1,053

6,616 (avg. 6.3)

798 (75.8%)

35 (3.3%)

Atbash Cipher

2,264

36,108 (avg. 15.9)

1,683 (74.3%)

111 (4.9%)

Trinary

1,989

13,984 (avg. 7.0)

1,727 (86.8%)

42 (2.1%)

Binary Search

1,286

9,487 (avg. 7.4)

881 (68.5%)

42 (3.3%)

Phone Number

1,170

6,184 (avg. 5.3)

837 (71.5%)

42 (3.6%)

Series

905

3,906 (avg. 4.3)

703 (77.7%)

24 (2.7%)

Complex Numbers

1,167

6,980 (avg. 6.0)

727 (62.3%)

26 (2.2%)

Food Chain

1,024

3,170 (avg. 3.1)

737 (72.0%)

28 (2.7%)

Roman Numerals

944

3,691 (avg. 3.9)

701 (74.3%)

24 (2.5%)

Bob

3,167

23,032 (avg. 7.3)

2,553 (80.6%)

275 (8.7%)

Word Count

1,500

6,186 (avg. 4.1)

1,132 (75.5%)

93 (6.2%)

Circular Buffer

965

7,579 (avg. 7.9)

562 (58.2%)

45 (4.7%)

Crypto Square

784

5,863 (avg. 7.5)

524 (66.8%)

22 (2.8%)

ETL

1,469

3,651 (avg. 2.5)

1,193 (81.2%)

43 (2.9%)

Matching Brackets

1,294

8,353 (avg. 6.5)

1,036 (80.1%)

37 (2.9%)

Anagram

1,640

5,042 (avg. 3.1)

1,271 (77.5%)

97 (5.9%)

Binary Search Tree

1,188

6,054 (avg. 5.1)

389 (32.7%)

46 (3.9%)

Luhn

1,613

17,555 (avg. 10.9)

1,313 (81.4%)

64 (4.0%)

Acronym

1,036

4,528 (avg. 4.4)

797 (76.9%)

30 (2.9%)

Armstrong Numbers

1,606

7,452 (avg. 4.6)

1,400 (87.2%)

34 (2.1%)

Binary

1,308

4,954 (avg. 3.8)

1,047 (80.0%)

84 (6.4%)

Hexadecimal

1,554

7,576 (avg. 4.9)

1,321 (85.0%)

79 (5.1%)

Isogram

2,517

4,898 (avg. 1.9)

1,617 (64.2%)

100 (4.0%)

Pascal's Triangle

909

3,408 (avg. 3.7)

698 (76.8%)

25 (2.8%)

Perfect Numbers

402

2,551 (avg. 6.3)

338 (84.1%)

6 (1.5%)

Scrabble Score

1,258

3,622 (avg. 2.9)

966 (76.8%)

90 (7.2%)

All Your Base

899

5,299 (avg. 5.9)

607 (67.5%)

48 (5.3%)

Robot Simulator

1,297

5,245 (avg. 4.0)

739 (57.0%)

54 (4.2%)

Bank Account

669

2,901 (avg. 4.3)

329 (49.2%)

38 (5.7%)

Darts

2,199

14,309 (avg. 6.5)

1,948 (88.6%)

31 (1.4%)

Largest Series Product

371

2,520 (avg. 6.8)

283 (76.3%)

10 (2.7%)

ISBN Verifier

522

3,780 (avg. 7.2)

401 (76.8%)

13 (2.5%)

Linked List

234

2,163 (avg. 9.2)

133 (56.8%)

10 (4.3%)

Simple Linked List

702

5,657 (avg. 8.1)

439 (62.5%)

19 (2.7%)

High Scores

633

5,250 (avg. 8.3)

562 (88.8%)

12 (1.9%)

Eliud's Eggs

759

3,045 (avg. 4.0)

688 (90.6%)

12 (1.6%)

Diamond

220

1,697 (avg. 7.7)

170 (77.3%)

4 (1.8%)

Run-Length Encoding

242

2,594 (avg. 10.7)

190 (78.5%)

5 (2.1%)

Rotational Cipher

787

5,836 (avg. 7.4)

703 (89.3%)

15 (1.9%)

Resistor Color

258

1,439 (avg. 5.6)

210 (81.4%)

4 (1.6%)

Resistor Color Duo

236

1,088 (avg. 4.6)

197 (83.5%)

2 (0.8%)

Minesweeper

201

1,184 (avg. 5.9)

133 (66.2%)

2 (1.0%)

Sublist

164

1,314 (avg. 8.0)

106 (64.6%)

4 (2.4%)

Zebra Puzzle

151

669 (avg. 4.4)

62 (41.1%)

5 (3.3%)

List Ops

190

2,071 (avg. 10.9)

110 (57.9%)

4 (2.1%)

Knapsack

146

1,165 (avg. 8.0)

89 (61.0%)

2 (1.4%)

Two Bucket

140

906 (avg. 6.5)

73 (52.1%)

2 (1.4%)

Yacht

187

1,829 (avg. 9.8)

131 (70.1%)

0 (0.0%)

Kindergarten Garden

561

4,723 (avg. 8.4)

423 (75.4%)

14 (2.5%)

D&D Character

254

1,715 (avg. 6.8)

165 (65.0%)

2 (0.8%)

Spiral Matrix

162

1,063 (avg. 6.6)

98 (60.5%)

4 (2.5%)

Parallel Letter Frequency

196

888 (avg. 4.5)

102 (52.0%)

5 (2.6%)

Pig Latin

184

1,579 (avg. 8.6)

92 (50.0%)

4 (2.2%)

Rail Fence Cipher

126

1,008 (avg. 8.0)

72 (57.1%)

3 (2.4%)

56 unimplemented practice exercises

Affine Cipher

Alphametics

Baffling Birthdays

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Forth

Go Counting

Grep

Hangman

House

Intergalactic Transmission

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Poker

POV

Proverb

Pythagorean Triplet

Rational Numbers

React

Rectangles

Relative Distance

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Split-Second Stopwatch

Square Root

State of Tic-Tac-Toe

Strain

Swift Scheduling

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zipper

1 foregone practice exercise

Point Mutations

View data

Programming Tags

Learn More

Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: fa924a0b0728c894eacbeabe6b9656ec62416b66 (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,841,379

Test Run Pass Rate

16.4% (302319)

Test Run Fail Rate

24.6% (453168)

Test Run Error Rate

59.0% (1085892)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: 29eab0a802586f7bc346f598a1ca98a74deb7547 (Takes up to 10 mins to deploy)

Total Representer Runs

321,979

Total Representation Comments Made

55,408

Feedback Given Frequency

17.2%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

Volunteers

594

siebenschlaefer

33.3k

vaeng

3,710

NachoGoro

2,918

+ 578 more

We 💙 our volunteers

Exercism relies on open-source volunteers to build our language tracks and mentor students.

Become an Exercism Volunteer

Language Tracks

Coding Fundamentals

Front-end Fundamentals

Your Journey

Exercism Perks

Community Videos

Brief Introduction Series

Interviews & Stories

Discord

Forum

Getting started

Mentoring

Docs

Contributors

Donate

About Exercism

Our Impact

Insiders

C++ Track Management

The C++ track needs attention ⚠️

C++ syllabus

Practice Exercises

Programming Tags

Test Runner

Representer

Analyzer

We 💙 our volunteers